#wrap {
  float: right;
  width: 600px;
  height: 500px;
  margin: 50px auto;
  margin-right: 180px;
  padding: 30px;
}

#top {
  width: 540px;
  height: 320px;
  border-bottom: 1px solid #bbb;
  font-family: 'Microsoft yahei';
}

#top p {
  margin-bottom: 15px;
}

#top p font {
  font-size: 14px;
  color: #000;
  margin-right: 15px;
}

#top p span {
  font-size: 14px;
  color: #666;
  border: 1px solid #999;
  display: inline-block;
  padding: 8px;
  cursor: pointer;
}

#top p span.on {
  border: 3px solid #f60;
  padding: 7px;
  background: url(img/on.png) no-repeat right bottom;
}
#bottom {
  width: 600px;
  height: 159px;
  padding-top: 70px;
}

#bottom p font {
  color: #f60;
  font-size: 20px;
  margin-right: 20px;
}

#bottom p a {
  font-size: 14px;
  color: blue;
}

#bottom p a i {
  margin: 0 5px;
  color: #90c;
}

#bottom button {
  width: 230px;
  height: 50px;
  margin-top: 50px;
  font-size: 20px;
  background: #f60;
  color: #fff;
  border: none;
}
.introduce{
  width: 1200px;
  /* height: 2550px; */
  /* overflow: auto; */
  border: 10px solid aqua;
  box-shadow: 0px 10px 60px 30px aqua;
  margin: 0 auto;
  margin-top: 100px;
}